Surface pattern for a napkin providing the illusion of a three-dimensional arc rainbow



The sole FIGURE is a top plan view of the surface pattern for a napkin providing the illusion of a three-dimensional arc rainbow showing my new design, the bottom plan being a mirror image. The FIGURE is of conventional thickness at side view. 

The ornamental design for a surface pattern for a napkin providing the illusion of a three-dimensional arc rainbow, as shown, and described. 